It's a hard question (not a no-brainer IMO). Rather than look at floor coverers, I'd look at other creatives like movie/TV script writers. They are unionized,

It's a hard question (not a no-brainer IMO). Rather than look at floor coverers, I'd look at other creatives like movie/TV script writers. They are unionized, and what they do is hard to characterize as unskilled or commoditized. Pay is more transparent, but the very best still command top salaries. I think one difference is that it's easier to correlate the quality of their output with the quality of the end-product because the teams tend to be very small.